Channel Estimation with Dedicated Pilot Signal in MIMO-OFDM Systems
In this paper, we consider channel estimation with the use of dedicated pilot signal in multiple-input multiple-output orthogonal frequency division multiplexing wireless systems. The dedicated pilot signal is transmitted through a channel virtually transformed by means of beam weighting. We conside...
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| creator | Han-Jun Park Keon-Wook Lee Yong-Hwan Lee |
| description | In this paper, we consider channel estimation with the use of dedicated pilot signal in multiple-input multiple-output orthogonal frequency division multiplexing wireless systems. The dedicated pilot signal is transmitted through a channel virtually transformed by means of beam weighting. We consider the use of a minimum mean squared error (MMSE)-type estimator that fully exploits the statistics of beam-weighted channel. Without the statistics of the beam-weighted channel, conventional channel estimators cannot noticeably enhance the estimation performance even with the use of dedicated pilot signal. Obtaining the statistics of the beam-weighted channel from that of the common pilot channel, we design an affine MMSE channel estimator in consideration of biased beam weighting for the transmission of dedicated pilot signal. Simulation results show that the proposed scheme noticeably outperforms conventional estimation schemes in poor operation condition. |
| doi_str_mv | 10.1109/VETECS.2011.5956644 |
| format | Conference Proceeding |
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Simulation results show that the proposed scheme noticeably outperforms conventional estimation schemes in poor operation condition.</description><subject>Channel estimation</subject><subject>Correlation</subject><subject>Eigenvalues and eigenfunctions</subject><subject>Estimation</subject><subject>MIMO</subject><subject>OFDM</subject><subject>Wireless communication</subject><issn>1550-2252</issn><isbn>1424483328</isbn><isbn>9781424483327</isbn><isbn>9781424483310</isbn><isbn>1424483298</isbn><isbn>9781424483297</isbn><isbn>9781424483303</isbn><isbn>142448331X</isbn><isbn>1424483301</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2011</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNo1j9FKwzAYhSMquM09wW7yAq350yRNLqXr5mClQou3I01SF-k6WQKyt7fgvDrn3Hx8B6EVkBSAqJePsi2LJqUEIOWKC8HYHVqqXAKjjMksA3KP5v-Dygc0A85JQimnT2gewhchLCcZnaGiOOpxdAMuQ_QnHf15xD8-HvHaWW90dBa_--EcceM_Rz1gP-JqV9VJvVlXuLmG6E7hGT32eghuecsFajdlW7wl-3q7K173iVckJrZ34LRiWhDWKW6MIXmnQfRqqlrInPe2AxDGCE4nb0F1B7zrjVVSWqeyBVr9Yb1z7vB9mXQv18Ptf_YLFyNM2Q</recordid><startdate>201105</startdate><enddate>201105</enddate><creator>Han-Jun Park</creator><creator>Keon-Wook Lee</creator><creator>Yong-Hwan Lee</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>201105</creationdate><title>Channel Estimation with Dedicated Pilot Signal in MIMO-OFDM Systems</title><author>Han-Jun Park ; Keon-Wook Lee ; Yong-Hwan Lee</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i90t-dfe1ea94a604b95ccc07ba16f9ccca6875fdb116cc65248362ab15bfcd988de93</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Channel estimation</topic><topic>Correlation</topic><topic>Eigenvalues and eigenfunctions</topic><topic>Estimation</topic><topic>MIMO</topic><topic>OFDM</topic><topic>Wireless communication</topic><toplevel>online_resources</toplevel><creatorcontrib>Han-Jun Park</creatorcontrib><creatorcontrib>Keon-Wook Lee</creatorcontrib><creatorcontrib>Yong-Hwan Lee</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Han-Jun Park</au><au>Keon-Wook Lee</au><au>Yong-Hwan Lee</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Channel Estimation with Dedicated Pilot Signal in MIMO-OFDM Systems</atitle><btitle>2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)</btitle><stitle>VETECS</stitle><date>2011-05</date><risdate>2011</risdate><spage>1</spage><epage>5</epage><pages>1-5</pages><issn>1550-2252</issn><isbn>1424483328</isbn><isbn>9781424483327</isbn><eisbn>9781424483310</eisbn><eisbn>1424483298</eisbn><eisbn>9781424483297</eisbn><eisbn>9781424483303</eisbn><eisbn>142448331X</eisbn><eisbn>1424483301</eisbn><abstract>In this paper, we consider channel estimation with the use of dedicated pilot signal in multiple-input multiple-output orthogonal frequency division multiplexing wireless systems. The dedicated pilot signal is transmitted through a channel virtually transformed by means of beam weighting. We consider the use of a minimum mean squared error (MMSE)-type estimator that fully exploits the statistics of beam-weighted channel. Without the statistics of the beam-weighted channel, conventional channel estimators cannot noticeably enhance the estimation performance even with the use of dedicated pilot signal. Obtaining the statistics of the beam-weighted channel from that of the common pilot channel, we design an affine MMSE channel estimator in consideration of biased beam weighting for the transmission of dedicated pilot signal. Simulation results show that the proposed scheme noticeably outperforms conventional estimation schemes in poor operation condition.</abstract><pub>IEEE</pub><doi>10.1109/VETECS.2011.5956644</doi><tpages>5</tpages></addata></record> |
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| ispartof | 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011, p.1-5 |
| issn | 1550-2252 |
| language | eng |
| recordid | cdi_ieee_primary_5956644 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Channel estimation Correlation Eigenvalues and eigenfunctions Estimation MIMO OFDM Wireless communication |
| title | Channel Estimation with Dedicated Pilot Signal in MIMO-OFDM Systems |
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